Universal serial bus adapter



FIG. 1 is a front view of the universal serial bus adapter, with the moveable antenna pointing upward;

FIG. 2 is a back view of the universal serial bus adapter, with the moveable antenna pointing upward;

FIG. 3 is a side view of the universal serial bus adapter (showing the antenna side), with the moveable antenna pointing upward;

FIG. 4 is a side view of the universal serial bus adapter (showing the side opposite the antenna), with the moveable antenna pointing upward;

FIG. 5 is a top view of the universal serial bus adapter; and,

FIG. 6 is a bottom view of the universal serial bus adapter. 

The ornamental design for a universal serial bus adapter, as shown and described. 